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Calendars by Readdle alternatives: 5 apps ranked by verified data

Facts checked Oct 25, 2026AppBreakup editorialHow we rank

Common reasons people leave Calendars by Readdle: apple platforms only, and premium features behind a subscription. We ranked 5 alternatives by how directly each one replaces Calendars by Readdle, then by reviews, real visits and how recently each app's facts were checked against its own website. Fantastical currently ranks first.

Quick comparison

#AppPricingOpen sourcePlatformsVerified factsScore
1Fantastical logoFantasticalFree plan + paidNomacOS, iOS, Windows5 of 566.5
2Apple Calendar logoApple CalendarFreeNomacOS, iOS, Web4 of 462.6
3Structured logoStructuredFree plan + paidNoiOS, macOS, Android +14 of 457.2
4Google Calendar logoGoogle CalendarFree plan + paidNoWeb, iOS, Android4 of 455.3
  1. Fantastical logo

    1. FantasticalTop pick

    Best for: Apple users who want the most refined calendar with natural-language input and tasks

    Free plan + paidmacOS, iOS, Windows

    66.5

    score / 100

    Why switch from Calendars by Readdle

    More powerful natural-language input, task integrations and scheduling links.

    Pros

    • Excellent natural-language event and task entry
    • Tasks from Reminders, Todoist and Google Tasks in one view
    • Calendar sets for switching contexts

    Cons

    • Most useful features need a subscription
    • No Android app yet
    • Overkill if you only need a basic calendar
    Visit Fantastical Details and reviews
    How this score is calculated
    Editorial fit ×0.3100
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.1585
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Fantastical a good Calendars by Readdle alternative?

    Verified facts

    5 of 5 verified
    Free plan
    Yes
    Checked Oct 25, 2026flexibits.com(opens source in a new tab)
    Free trial
    14 days of Premium
    Checked Oct 25, 2026flexibits.com(opens source in a new tab)
    Family plan
    Up to 5 members
    Checked Oct 25, 2026flexibits.com(opens source in a new tab)
    Task integrations
    iCloud Reminders, Todoist, Google Tasks
    Checked Oct 25, 2026flexibits.com(opens source in a new tab)
    Android
    Planned for 2027
    Checked Oct 25, 2026flexibits.com(opens source in a new tab)
  2. Apple Calendar logo

    2. Apple Calendar

    Best for: Apple device owners who want a simple free calendar that syncs through iCloud

    FreemacOS, iOS, Web

    62.6

    score / 100

    Why switch from Calendars by Readdle

    Built in and free, if you don't need tasks in the same view.

    Pros

    • Free and preinstalled on Apple devices
    • Combines iCloud, Google and Exchange accounts
    • Shows reminders alongside events

    Cons

    • No native Android or Windows app
    • No scheduling links or advanced natural-language input
    • Basic task and time-zone features
    Visit Apple Calendar Details and reviews
    How this score is calculated
    Editorial fit ×0.387
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.1585
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Apple Calendar a good Calendars by Readdle alternative?

    Verified facts

    4 of 4 verified
    Accounts
    iCloud, Google and others
    Checked Oct 25, 2026support.apple.com(opens source in a new tab)
    Reminders in calendar
    Yes
    Checked Oct 25, 2026support.apple.com(opens source in a new tab)
    Lunar calendars
    Chinese, Hebrew, Islamic
    Checked Oct 25, 2026support.apple.com(opens source in a new tab)
    Calendar sharing
    Yes
    Checked Oct 25, 2026support.apple.com(opens source in a new tab)
  3. Structured logo

    3. Structured

    Best for: Individuals who want a visual, timeline-style planner for their day

    Free plan + paidiOS, macOS, Android, Web

    57.2

    score / 100

    Why switch from Calendars by Readdle

    Visual timeline planner for laying out your day.

    Pros

    • Clear visual timeline of the day
    • Free tier covers basic planning
    • Available on Apple devices, Android and the web

    Cons

    • Personal planner, not built for shared calendars
    • Calendar integration and many extras need Pro
    • Limited project or long-term planning
    Visit Structured Details and reviews
    How this score is calculated
    Editorial fit ×0.369
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.1585
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Structured a good Calendars by Readdle alternative?

    Verified facts

    4 of 4 verified
    Downloads
    15M+
    Checked Oct 25, 2026structured.app(opens source in a new tab)
    Pro users
    500K+
    Checked Oct 25, 2026structured.app(opens source in a new tab)
    Languages
    30+
    Checked Oct 25, 2026structured.app(opens source in a new tab)
    Web app
    Yes
    Checked Oct 25, 2026structured.app(opens source in a new tab)
  4. Google Calendar logo

    4. Google Calendar

    Best for: Anyone on Gmail or Google Workspace who wants a reliable free shared calendar

    Free plan + paidWeb, iOS, Android

    55.3

    score / 100

    Why switch from Calendars by Readdle

    Works across iPhone, Android and the web.

    Pros

    • Free, fast sync across web, Android and iOS
    • Easy sharing and invitations with Meet links
    • Built-in appointment booking page

    Cons

    • No official desktop app for Windows or Mac
    • Not end-to-end encrypted
    • Fuller booking features need a paid plan
    Visit Google Calendar Details and reviews
    How this score is calculated
    Editorial fit ×0.363
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.1585
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Google Calendar a good Calendars by Readdle alternative?

    Verified facts

    4 of 4 verified
    Platforms
    Web, Android, iOS, Wear OS, Apple Watch
    Checked Oct 25, 2026workspace.google.com(opens source in a new tab)
    Free booking page
    One, with a personal Google account
    Checked Oct 25, 2026workspace.google.com(opens source in a new tab)
    Premium appointment scheduling
    Certain Google One and Workspace plans
    Checked Oct 25, 2026workspace.google.com(opens source in a new tab)
    Multiple calendars
    Yes
    Checked Oct 25, 2026workspace.google.com(opens source in a new tab)

The best Calendars by Readdle alternative for…

The highest-ranked app in this list for each need.

Fantastical logo

Best Calendars by Readdle alternative for most people

Fantastical

More powerful natural-language input, task integrations and scheduling links.

Apple Calendar logo

Best Calendars by Readdle alternative for a free option

Apple Calendar

Built in and free, if you don't need tasks in the same view.

Structured logo

Best Calendars by Readdle alternative for a free plan you can upgrade

Structured

Visual timeline planner for laying out your day.

BusyCal logo

Best Calendars by Readdle alternative for Mac

BusyCal

One-time purchase power calendar for iPhone and Mac.

Fantastical logo

Best Calendars by Readdle alternative for Windows

Fantastical

More powerful natural-language input, task integrations and scheduling links.

Google Calendar logo

Best Calendars by Readdle alternative for iPhone and Android

Google Calendar

Works across iPhone, Android and the web.

Apple Calendar logo

Best Calendars by Readdle alternative for working in the browser

Apple Calendar

Built in and free, if you don't need tasks in the same view.

Calendars by Readdle alternatives: common questions

What is the best alternative to Calendars by Readdle?

Fantastical ranks first right now. More powerful natural-language input, task integrations and scheduling links. Apple Calendar and BusyCal follow it in our ranking.

Is there a free alternative to Calendars by Readdle?

Yes. Fantastical (free plan + paid), Apple Calendar (free), Structured (free plan + paid) and Google Calendar (free plan + paid) have a free option. Check each app's verified facts for current plan limits.

Is there an open-source alternative to Calendars by Readdle?

None of the 5 alternatives in this list is open source.

Why do people switch from Calendars by Readdle?

The complaints we hear most: apple platforms only; premium features behind a subscription; fewer power-user options than Fantastical.

How is this list ranked?

Every app is scored with the same published formula: how directly it replaces Calendars by Readdle, reviews (weighted by verification), visits from AppBreakup, how recently its facts were checked against its own website, and reader votes.